The number 001 can refer to: * Puzzle Where's the Town? from Professor Layton and the Curious Village * Puzzle Dr. Schrader's Map from Professor Layton and the Diabolical Box * Puzzle Party Crasher from Professor Layton and the Unwound Future * Puzzle A Secret Message from Professor Layton and the Last Specter * Puzzle Stumble's Balloons from Professor Layton and the Miracle Mask * Puzzle Airship's Destination from Professor Layton and the Azran Legacy * Puzzle Paths of Light from Professor Layton vs. Phoenix Wright: Ace Attorney